I have the following data frame (called "graph_data"):
> graph_data
dates types count
1 2010-01 A 171
2 2010-01 B 146
3 2010-01 C 55
4 2010-01 D 71
5 2010-01 E 66
6 2010-02 A 78
7 2010-02 B 56
8 2010-02 C 23
9 2010-02 D 21
10 2010-02 E 30
11 2010-03 A 43
12 2010-03 B 21
13 2010-03 C 18
14 2010-03 D 11
Using the reshape2 library, I was able to change this data into "long format":
dd <- graph_data
final = data.frame(reshape2::acast(dd, list(names(dd)[1], names(dd)[2])))
A B C D E
2010-01 171 146 55 71 66
2010-02 78 56 23 21 30
2010-03 43 21 18 11 16
2010-04 32 20 7 14 9
2010-05 36 27 7 10 12
This worked fine - but now the "dates" column has disappeared:
> str(final)
'data.frame': 5 obs. of 5 variables:
$ A: int 171 78 43 32 36
$ B: int 146 56 21 20 27
$ C: int 55 23 18 7 7
$ D: int 71 21 11 14 10
$ E: int 66 30 16 9 12
Is it possible to bring the "dates" column back? (i.e. 6 total columns)
How to fix this problem?
